Home / 39,073.10-53,921.02-21,168.06

Finding the Fourth Proportional to 39,073.10, 53,921.02 and 21,168.06

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Solution

The fourth proportional to 39,073.10, 53,921.02 and 21,168.06 is: 29,212.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,073.10 : 53,921.02 = 21,168.06 : x
  2. Step 2: Convert to fraction form
    39,073.10/53,921.02 = 21,168.06/x
  3. Step 3: Cross multiply
    39,073.10x = 53,921.02 × 21,168.06
  4. Step 4: Simplify right side
    39,073.10x = 1,141,403,386.62
  5. Step 5: Solve for x
    x = 1,141,403,386.62/39,073.10
  6. Step 6: Final answer
    x = 29,212.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.